How Pochettino kicked those players makes me worried about Chelsea future. Those players who left Chelsea are good players, I don't know why they should be leaving Chelsea. For me, transfer policy made by Chelsea, indicates they still don't understand what the weaknesses of this team exactly. Chelsea don't know how to build their squad with proper players.
Let's hope that Pochettino, with his coaching experience, knows what he is going for and I'm not sure that the departure of all these players is Pochettino's initiative. However, if with the presence of such players Chelsea dropped so much in the standings last season, then it means that these players are to blame for this and there is a certain logic in parting with them. We can say that Chelsea recruited good musicians, but could not make an equally good orchestra out of them. Also, let's not forget that the club did not get into the Champions League, so the club definitely needs to squeeze in expenses and therefore the club is not able to keep all the players in its squad. I also think that Pochettino had a certain word which of the players should definitely be left.